How do I convert XLSX / XLS / ODS to HTML?

Upload your XLSX / XLS / ODS file above, click Convert, and download the HTML result instantly. No account or software needed.

Is converting XLSX / XLS / ODS to HTML free?

Yes. It is free and unlimited for files up to 5 MB, with no account required. Larger files get 3 free conversions per day; beyond that, credit packs start at $3 and credits never expire.

Are my files stored or shared?

No. Files are processed in server memory and deleted immediately after conversion. File contents are never written to disk or retained.

Do I need to install anything?

No software installation needed. OmniConvert runs in the browser — just upload, convert, and download.

OmniConvert

Convert Spreadsheet to HTML table

Free

Render the first sheet of an Excel/ODS file as an HTML table

Drop a file or click to browse

Accepted: .xlsx,.xls,.ods

Free and unlimited for files up to 5 MB. No account needed.

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Convert XLSX to ODS— Convert an Excel spreadsheet to OpenDocument format
Convert CSV to HTML table— Render a CSV file as an HTML table

About this conversion

Render the first sheet of an Excel/ODS file as an HTML table. This converter processes your XLSX / XLS / ODS file server-side and returns a HTML file instantly — no account, no software installation, and no file storage. Files are deleted from our servers immediately after conversion.

How to convert XLSX / XLS / ODS to HTML

1. Upload — drag your XLSX / XLS / ODS file onto the converter above, or click to browse.
2. Convert — press Convert. Processing happens on secure servers in seconds.
3. Download — your HTML file downloads automatically. No sign-up required.

Convert XLSX / XLS / ODS to HTML from the command line

curl --fail-with-body \
  -H "Authorization: Bearer YOUR_TOKEN" \
  -F "file=@input.xlsx" \
  -F "conversionId=spreadsheet-to-html" \
  https://www.omniconvert.cloud/api/convert -o output.html

The API needs a token from a credit pack, and each API conversion uses one credit. Converting on this page stays free. API documentation

Frequently Asked Questions

How do I convert XLSX / XLS / ODS to HTML?: Upload your XLSX / XLS / ODS file above, click Convert, and download the HTML result instantly. No account or software needed.
Is converting XLSX / XLS / ODS to HTML free?: Yes. It is free and unlimited for files up to 5 MB, with no account required. Larger files get 3 free conversions per day; beyond that, credit packs start at $3 and credits never expire.
Are my files stored or shared?: No. Files are processed in server memory and deleted immediately after conversion. File contents are never written to disk or retained.
Do I need to install anything?: No software installation needed. OmniConvert runs in the browser — just upload, convert, and download.

No account needed · Credits never expire · Share your token link across devices